CONSTITUTIVE ASPECTS OF AN EMBANKMENT WIDENING PROJECT

Two stress-strain models are used to backcalculate deformations for an embankment widening of a road on soft soil (a near-normally consolidated peat and clay layer) in Rotterdam, the Netherlands: the elastic-plastic Mohr-Coulomb model and a Cam-Clay type model. In order to demonstrate the need of plasticity models, the paper begins with some preliminaries on constitutive modelling and a review of non linear elasticity models. Subsequently, the Mohr-Coulomb model and the Cam-Clay model are considered. Attention is focussed on the stress-strain relationship for various types of loading. For the deformation calculations stiffness parameters based on compression and swelling index were chosen in such a way that both models predict about the same vertical displacements. However, the Cam-Clay model gives smaller horizontal displacements, which actually agree with the field measurements. This indicates that the choice of a constitutive model can be of major importance to predict correct deformations for near-normally consolidated soils. For the covering abstract of the conference see IRRD 863640.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9054103663
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Brinkgreve, RBJ
  • VERMEER, P A
  • Vos, E
• Publication Date: 1994

Language

• English

Media Info

• Features: References;
• Pagination: p. 143-58
• Serial:
  • ADVANCES IN UNDERSTANDING AND MODELLING THE MECHANICAL BEHAVIOUR OF PEAT: PROCEEDINGS OF THE INTERNATIONAL WORKSHOP, 16-18 JUNE 1993, DELFT, NETHERLANDS
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Clay; Compressibility; Conferences; Deformation; Embankments; Ground settlement; Loads; Mathematical models; Pavement widening; Peat; Stresses; Subsoil
• Geographic Terms: Netherlands
• ITRD Terms: 4177: Clay; 5905: Compressibility; 8525: Conference; 5595: Deformation; 2801: Embankment; 5567: Load; 6473: Mathematical model; 8078: Netherlands; 4349: Peat; 5792: Settlement; 5575: Stress (in material); 2930: Subsoil; 2889: Widening (road, bridge)
• Subject Areas: Data and Information Technology; Geotechnology;

Filing Info

• Accession Number: 00662185
• Record Type: Publication
• Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
• ISBN: 90-5410-366-3
• Files: ITRD
• Created Date: Jul 28 1994 12:00AM